Bluetooth headset



FIG. 1 is a front perspective view of a Bluetooth headset showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof;

FIG. 8 is a bottom view thereof; and,

FIG. 9 is another perspective thereof, shown being received inside a box.

The broken line showing of the box in FIG. 9 depicts environment and forms no part of the claimed design. All other broken lines depict portions of the Bluetooth headset that form no part of the claimed design. 

CLAIM The ornamental design for a Bluetooth headset, as shown and described. 